reference, declaration → definition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced

    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31

; RUN: opt -S -licm < %s | FileCheck %s --check-prefix=IR-AFTER-TRANSFORM
; RUN: opt -analyze -scalar-evolution -licm -scalar-evolution < %s | FileCheck %s --check-prefix=SCEV-EXPRS

declare void @clobber()

define void @f_0(i1* %loc) {
; IR-AFTER-TRANSFORM-LABEL: @f_0(
; IR-AFTER-TRANSFORM: loop.outer:
; IR-AFTER-TRANSFORM-NEXT:  call void @clobber()
; IR-AFTER-TRANSFORM-NEXT:  %cond = load i1, i1* %loc
; IR-AFTER-TRANSFORM-NEXT:  br label %loop.inner

; SCEV-EXPRS: Classifying expressions for: @f_0
; SCEV-EXPRS: Classifying expressions for: @f_0
; SCEV-EXPRS:  %cond = load i1, i1* %loc
; SCEV-EXPRS-NEXT:   -->  {{.*}} LoopDispositions: { %loop.outer: Variant, %loop.inner: Invariant }

entry:
  br label %loop.outer

loop.outer:
  call void @clobber()
  br label %loop.inner

loop.inner:
  %cond = load i1, i1* %loc
  br i1 %cond, label %loop.inner, label %leave.inner

leave.inner:
  br label %loop.outer
}